Oil-burner



(No Model.)'

c..T. GOATES & w. R. HELTON.

OIL BURNER.

No. 475,297. Patented Ma 24, 1892.

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CLINTON TREAT COATES AND WVALTER R. HELTON, OF TERRF. HAUTE, ASSIGNORS TO ISAAC FECHHEIMER, OF VIGO COUNTY, INDIANA.

OIL-BURNER.

SPECIFICATION forming part of Letters Patent No. 475,297, dated May 24, 1892.

Application filed August 3, 1891. Serial 110.401, 152. (No model.)

To ctZZ whom it may concern- Be it known that we, CLINTON TREAT COATES and VVALTERR. HELTON, citizens of the United States, residing at Terre Haute, in the county of Vigo and State of Indiana, have invented certain new and useful Improvements in Oil- Burners; and we do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form part of this specification.

Our invention relates to that class of oilburners in which the crude oil is vaporized by a blast of steam or compressed air; and the objects of our improvements are to provide, first, a burner that will thoroughly vaporize the oil, and, second, one that can be manufactured at small expense and at the same time be strong and substantial. We attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure 1 is a sectional view of the entire burner, showing the interior. Fig. 2 is a crosssectional view taken upon the line XY in Fig. 1, showing the several ribs d and the steam or air ways to at that point. Fig. 3 is a crosssectional view of the burner, taken upon the line X Y in Fig. 1, showing the ends of the several ribs and the steam or air ways w.

Similar letters refer to similar parts in both views.

The letter A indicatesthe body of the burner and consists of a dome or cup-shaped casting of cast-iron or any other suitable material, and, as shown in Fig. 1, is curved or rounded at the outer end, while at the opposite end it is raised into a broad and strong flange a. The outer end of A is perforated, and said perforation is beveled outward, thus forming the convexed orifice b, which acts as a nozzle for the burner.

The letters d 01 indicate metallic ribs, which are cast upon theinside of the body A. These ribs are arranged at equal intervals around the inner wall of the burner, as shown in the drawings, and are strong flat partitions, which divide the interior of the burner into a series of longitudinal steam or air ways 10 w. The

ribs 61 cl stand out from the inner wall of the body A in planes, all of which pass through the centerof the burner, and at the end nearest the nozzle they are all curved laterally, and all in the same cyclical direction, as shown in Fig. 1, thus causing a current of steam or air which passes between the different ribs to take a cyclical direction, as shown by the arrows in Fig. 1, and to circulate around in the space 0, which is left between the ends of the ribs and the nozzle of the burner. At the end nearest the nozzle 1) the ribs are of such height that there is just room enough for the oil-pipe p to pass between them; but the height decreases gradually toward the opposite end about one-half; also, the ribs vary alternately in length, the shorter set extending just to the end of the pipe 19, while the longer set extends a short distance beyond the end of the pipe 19. The steam or air ways to 10, formed between the wall of the burner and the ribs, are necessarily wedgeshaped, as shown in Figs. 2 and 3. Thus the steam or air is compressed into a smaller space as it passes forward.

The letter B indicates a cylindrical casting, which is of the same diameter as A. At one end this cylinder is furnished with a strong flange a, which is the counterpart of the flange a of A, to which it is firmly fastened by a series of screws 8 .9. At the opposite end of the cylinder its diameter is decreased, and a neck n is formed to receive a strong metal cap g; The cap g fits tightly over the neck 'n of the cylinder B and makes it steam-tight. The cap 9 is perforated at its center in order that the supply-steam pipe j may pass through it into the cylinder B. The cylinderB is furnished with a drain-cock h, by means of which any waste matter may be drawn off, and is also perforated upon its upper side to receive the oil-supply pipe 19', which is joined to the pipep by means of an elbow p. In order that the joint may be perfectly steam-tight, we place a strong strip or washer i, of asbestus or any other suitable material, between the flanges a and a. The cap g, as shown in Fig. 1, is used when steam is used as a blast; but when we desire to employ air as a blast we simply remove the cap g and the steamsupply pipe j and slip the end of a closely-fitting blast-pipe over the neck a. The outer surface of the neck n may be threaded to receive similar threads upon the inside of the cap g or blast-pipe, or any other convenient means of joining the same may be employed. To operate our burner, we fasten it in such position that the flame issuing from the noz' zle will spread over the greatest portion possible of the boiler or other contrivance which is to be heated. Then we admit a stream of oil through the oil-pipe p and turn on the blast of steam or air, which passes through the ways w. The blast takes up the oil and dashes it into a vapor, with which it unites and blows out through the nozzle b in the form of a gas, which when ignited burns with an intense heat. The curvature at the end of the ribs causes the blast to whirl violently around in the space or cavity 0, thus coinpletelyatomizing the oil which ittakes with it.

We are aware that prior to our invention oil-burners have been used wherein the oil was vaporized by and united with awhirling blast of steam or air. We therefore do not claim such features, broadly; but

What we do claim as our invention, and desire to secure by Letters Patent, is-- 1. The combination, in an oil-burner, of a dome-like body A furnished with the ribs 11, k

ward end and connected with the supply-oil pipe 1) at the opposite end by means of the elbow p" with the cylinder B, said cylinder being-furnished with a flange a, a neck or throat 'n, and a drain-cock h, a cap g, and a blast-pipe j, all substantially as set forth and described. 7

2. The combination, in an oil-burner, of a dome-like body A furnished with the ribs d, which are situated at equal intervals around the inner wall of the body A in planes which pass through the axis of the burner and are curved laterallyat their frontends, the cavity 0 and the nozzle 1), situated at the forward end, and the flange a at the opposite end, with a cylinder B,said cylinderB beingfurnished at its forward end with a flange a, which is screwed firmly to the flange a, and at the other end with a cap 9 and a blast-pipej, the oil-pipe (I', extending through the wall of B and connected with the oil-pipe p, which extends for ward between the ribs d of A, all substantially as andfor the purpose set forth and specified. In testimony that we claim the foregoingas our own we affix our signatures in presence of two witnesses.

CLINTON TREAT COATES. WVALTER R. HELTON. Witnesses:

A. MCGREGOR, GEORGE M. DAVIS. 

